Hacker Remix
Show HN: I created a web app to encrypt/decrypt messages using Web Crypto API
35 points by thiagosf 9 months ago | 9 comments
yfw 8 months ago
I did this a while ago as well for rsa vs aes implementations. https://yifeiwu.github.io/subtlecrypto-demo/
thiagosf 8 months ago
That's cool, thanks for sharing it.
kristianr4s 8 months ago
nice - have you considered using a websocket to push the message to the receiver instead of when the receiver posts a message back?
thiagosf 8 months ago
Good one! I added some possible future improvements in the Readme.md, I'll add this one too. Thank you
Rhapso 8 months ago
How are the public and private keys generated and stored?
hesus_ruiz 8 months ago
Generation, signature, verification, and some more crypto operations are performed with the standard browser Crypto APIs (https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypt...).
Storage of the private key is another thing. For a web app it is difficult to acces a hardware-based storage system. So typically it is stored in Localstorage or IndexdedDB, encrypted using a user-provided password. It is possible (but very involved and I have not seen web apps using it) to use WebAuthn for that.
thiagosf 8 months ago
I couldn't explain better, thank you !
random_kris 9 months ago
Very cool wanted to build something similar myself
thiagosf 8 months ago
Nice! You can check my source code and create your implementation!
brody_slade_ai 8 months ago
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